What happens when the number of protons in an atom changes

When you change the number of protons in an atom, you will change the atom from one element to a different element. Sometimes, when you add a proton to an element, the element will become radioactive. If you change the number of neutrons in an atom, you get an isotope of the same element.

1: February
2: March
3: January, and December
4: August, September, and October
5: October